Along with showcasing extensions such as LinkedIn and Salesforce that bring in more information about the people with whom you're communicating in Outlook, at its Build conference keynote Microsoft today showed a new extension that lets people call for Uber drivers straight from the email and calendar client.

Microsoft is partnering with ride-hailing service Uber to bring an add-in to Outlook, which can remind you when to get a car and auto-fill your destination and current location to help you order rides. This means you can set up a ride without leaving your Outlook client and it will let you know when your driver is getting near.

It's no surprise that Microsoft is making a broad push to get developers to join in and start making add-ons for its software ecosystem. With the hot ride-hailing service, Microsoft is trying to show that big names are getting involved in an attempt to get developers excited about building for Outlook and other Microsoft services.